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Cheap flights from South Dakota to Idaho Falls from $289

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Idaho Falls departing on 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from South Dakota to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:35 am - 1:34 pmRAP-IDA
4h 59m1 stop
United Airlines Logo
4:19 pm - 10:11 pmIDA-RAP
5h 52m1 stop
$289United Airlines
Find Deal
Wed, Mar 25 - Sat, Mar 28
United Airlines Logo
10:45 am - 9:28 amRAP-IDA
22h 43m1 stop
United Airlines Logo
2:35 pm - 9:18 amIDA-RAP
18h 43m1 stop
$502United Airlines
Find Deal
Mon, Apr 27 - Fri, May 1
United Airlines Logo
8:45 am - 3:22 pmRAP-IDA
6h 37m1 stop
United Airlines Logo
5:00 am - 7:12 pmIDA-RAP
14h 12m1 stop
$548United Airlines
Find Deal
Fri, Dec 19 - Sat, Dec 20
American Airlines Logo
5:51 am - 9:57 pmRAP-IDA
16h 06m2 stops
American Airlines Logo
8:23 am - 8:15 pmIDA-RAP
11h 52m2 stops
$931American Airlines
Find Deal
Wed, Mar 25 - Sat, Mar 28
United Airlines Logo
5:48 pm - 9:28 amRAP-IDA
15h 40m1 stop
United Airlines Logo
2:35 pm - 10:53 amIDA-RAP
20h 18m2 stops
$1,064United Airlines
Find Deal
Mon, Apr 27 - Fri, May 1
Delta Logo
10:40 am - 6:14 pmRAP-IDA
7h 34m2 stops
Delta Logo
6:10 am - 3:10 pmIDA-RAP
9h 00m2 stops
$1,611Delta
Find Deal
Mon, Apr 27 - Fri, May 1
Delta Logo
6:05 am - 6:26 pmRAP-IDA
12h 21m2 stops
Delta Logo
5:55 am - 3:34 pmIDA-RAP
9h 39m2 stops
$1,741Delta
Find Deal
Fri, Dec 19 - Sat, Dec 20

United Airlines flights from South Dakota to Idaho Falls

Our best United Airlines deals on South Dakota to Idaho Falls flight tickets
United Airlines
Mar 25
RAP8:35 amRapid City
4h 59m
1 stop
IDA1:34 pmIdaho Falls Fanning Field
Mar 28
IDA4:19 pmIdaho Falls Fanning Field
5h 52m
1 stop
RAP10:11 pmRapid City
$289
Find similar
United Airlines
Apr 27
RAP10:45 amRapid City
22h 43m
1 stop
IDA9:28 amIdaho Falls Fanning Field
May 1
IDA2:35 pmIdaho Falls Fanning Field
18h 43m
1 stop
RAP9:18 amRapid City
$502
Find similar
United Airlines
Dec 19
RAP8:45 amRapid City
6h 37m
1 stop
IDA3:22 pmIdaho Falls Fanning Field
Dec 20
IDA5:00 amIdaho Falls Fanning Field
14h 12m
1 stop
RAP7:12 pmRapid City
$548
Find similar

Delta flights from South Dakota to Idaho Falls

Our best Delta deals on South Dakota to Idaho Falls flight tickets
Delta
Apr 27
RAP10:40 amRapid City
7h 34m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
May 1
IDA6:10 amIdaho Falls Fanning Field
9h 00m
2 stops
RAP3:10 pmRapid City
$1,611
Find similar
Delta
Dec 19
RAP6:05 amRapid City
12h 21m
2 stops
IDA6:26 pmIdaho Falls Fanning Field
Dec 20
IDA5:55 amIdaho Falls Fanning Field
9h 39m
2 stops
RAP3:34 pmRapid City
$1,741
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from South Dakota to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from South Dakota to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Wed 3/25

8:35 am-1:34 pm

1 stop4h 59m

Idaho Falls Fanning Field

Sat 3/28

4:19 pm-10:11 pm

1 stop5h 52m

$289

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Mon 4/27

10:45 am-9:28 am

1 stop22h 43m

Idaho Falls Fanning Field

Fri 5/1

2:35 pm-9:18 am

1 stop18h 43m

$502

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Fri 12/19

8:45 am-3:22 pm

1 stop6h 37m

Idaho Falls Fanning Field

Sat 12/20

5:00 am-7:12 pm

1 stop14h 12m

$548

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Wed 3/25

5:51 am-9:57 pm

2 stops16h 06m

Idaho Falls Fanning Field

Sat 3/28

8:23 am-8:15 pm

2 stops11h 52m

$931

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Mon 4/27

5:48 pm-9:28 am

1 stop15h 40m

Idaho Falls Fanning Field

Fri 5/1

2:35 pm-10:53 am

2 stops20h 18m

$1,064

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Mon 4/27

10:40 am-6:14 pm

2 stops7h 34m

Idaho Falls Fanning Field

Fri 5/1

6:10 am-3:10 pm

2 stops9h 00m

$1,611

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Fri 12/19

6:05 am-6:26 pm

2 stops12h 21m

Idaho Falls Fanning Field

Sat 12/20

5:55 am-3:34 pm

2 stops9h 39m

$1,741

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from South Dakota to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Thursday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $344. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $391.

Cheap South Dakota to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Dakota to Idaho Falls

Direct flights

None
There are no direct flights from South Dakota to Idaho Falls. There are no popular flight routes from South Dakota to Idaho Falls.
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  • When did momondo last update prices for flights from South Dakota to Idaho Falls Fanning Field Airport?

    Prices for flights from South Dakota to Idaho Falls Fanning Field Airport are updated daily.

  • How many operators does momondo search for flights from South Dakota to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from South Dakota to Idaho Falls Fanning Field Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Dakota to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to Idaho Falls

Compare and see reviews for airlines that fly from South Dakota to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from South Dakota to Idaho Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from South Dakota to Idaho Falls for you.

Can I find flights from South Dakota to Idaho Falls with flexible booking policies on momondo?

Flights from South Dakota to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from South Dakota to Idaho Falls?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho Falls from South Dakota.

I’m not ready to book a flight from South Dakota to Idaho Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho Falls from South Dakota are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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